This past week and this weekend I've finally found the time to enter into the colorful world of custom Android ROMs. After figuring out just how insanely great and awesome ClockWorkMod Recovery is, I set about to figure out what the best Ice Cream Sandwich ROM is for the Galaxy SII. While the answer to that question became clear quite quickly, this answer also gave rise to a whole bunch of other questions.

Just curious, is the Rogers version unlockable? Meaning, can you use the official Sony-Ericsson method for unlocking the bootloader in order to install other ROMs?

I have the Fido Xperia Pro, and they've removed the option to unlock the bootloader using the official methods. The only way to unlock it is to use fancy software you have to pay for (although there's a couple of people on xda-forums that will help you do it remotely).